Answered: The average annual cost (including…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average annual cost (including tuition, room, board, books and fees) to attend a public college takes nearly a third of the annual income of a typical family with college-age children (Money, April 2012). At private colleges, the average annual cost is equal to about 60% of the typical family's income. The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars.

Private	Public
52.8	20.3
43.2	22.0
45.0	28.2
33.3	15.6
44.0	24.1
30.6	28.5
45.8	22.8
37.8	25.8
50.5	18.5
42.0	25.6
	14.4
	21.8

Develop a 95% confidence interval of the difference between the annual cost of attending private and pubic colleges.95% confidence interval, private colleges have a population mean annual cost ____ to ____.

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